---
title: "Convert CIELUV to the polar representation (polarLUV; HCL)"
---

### Description

Converts colors from the CIELUV color space into its polar
representation (`polarLUV`). The `polarLUV` color space
is also known as the HCL (Hue-Chroma-Luminance) color space
which this package uses frequently, e.g., when creating
efficient color maps. Inverse function of [polarLUV_to_LUV](colorspace.colorlib.colorlib.polarLUV_to_LUV.qmd).

### Usage

<pre><code class='language-python'>colorlib.LUV_to_polarLUV(L, U, V)</code></pre>

### Arguments

<dl class="pyp-list param-list">
  <dt style = "white-space: nowrap; font-family: monospace; vertical-align: top">
   <code id="colorspace.colorlib.colorlib.LUV_to_polarLUV:L">L</code><code class="argument-class">numpy.ndarray</code>
  </dt>
 <dd>Values for the `L` dimension.</dd>
  <dt style = "white-space: nowrap; font-family: monospace; vertical-align: top">
   <code id="colorspace.colorlib.colorlib.LUV_to_polarLUV:U">U</code><code class="argument-class">numpy.ndarray</code>
  </dt>
 <dd>Values for the `U` dimension.</dd>
  <dt style = "white-space: nowrap; font-family: monospace; vertical-align: top">
   <code id="colorspace.colorlib.colorlib.LUV_to_polarLUV:V">V</code><code class="argument-class">numpy.ndarray</code>
  </dt>
 <dd>Values for the `V` dimension.</dd>
</dl>

### Return

<code>list</code>: Returns corresponding polar LUV chromaticities as a list of
`numpy.ndarray`s of the same length as the inputs (`[L, A, B]`),
also known as `[H, C, L]` coordinates.
